Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
2576341
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
535878929929.0old
14221402331030.42008-07-14 20:25:07
ECM
DigitsB1Curves
2550000161 / 280
Estimated T-Level: 22.9
TF below 2^71 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-15Oliver Kruse0F2618F5EC498B2C2149402953
Verified
PRP without proof (not generated)
2017-12-01storm55100F2618F5EC498B2C2107756353
History
DateUserTypeResult
2022-09-02USAFSSNF-PM1B1=300000, B2=235092660
2017-12-01storm5510C-PRPM2576341/535878929/1422140233 : 0F2618F5EC498B2C
2017-10-15Oliver KruseC-PRPM2576341/535878929/1422140233 : 0F2618F5EC498B2C
2008-07-14George WoltmanF-ECMFactor: 1422140233